[ITK] [ITK-users] Working with RIRE Datasets

[Gabriel A. Giménez]

>
> Doing great!  Thanks for asking questions on the list. :-)


great!, thank you for answer !

Usually, a transformation "From CT to MR" implies that CT is the Fixed
> Image and MR is the Moving Image in ITK terminology.


Yes, but in RIRE is different...[1]:
"A given transformation maps points from one volume on the left, which we
will call the “From” image, to one volume on the right, which we will call
the “To” image."

Yes, you can easily get an inverse for a transform with the GetInverse


Excellent !, I tried it and it worked great ...:

TransformType::Pointer inverseTransform = TransformType::New();
bool response = finalTransform->GetInverse(inverseTransform);

Thanks and regards!

 [1] http://www.insight-journal.org/rire/transform_format.php

2015-04-01 11:59 GMT-04:00 Matt McCormick <matt.mccormick at kitware.com>:

> Hi Gabriel,
>
> > Hi! how are you?
>
> Doing great!  Thanks for asking questions on the list. :-)
>
> > I'm trying to use RIRE datasets..., for example:
> >
> > In the RIRE terminology we say "From CT to MR", this means that the
> "moving
> > image" is the CT image and the fixed image is the MR image. Then, I need
> a
> > transformation "T"  to apply to the CT test points for the comparison
> with
> > the "ground truth"...I'm not wrong about this?
>
> Usually, a transformation "From CT to MR" implies that CT is the Fixed
> Image and MR is the Moving Image in ITK terminology.
>
> > But my problem is that the ITK provides a transformation that maps poins
> of
> > the fixed (MR) image on the moving image (CT) , I guess I need to get the
> > inverse transformation...is that possible? I'm misunderstanding
> something?
>
> Yes, you can easily get an inverse for a transform with the GetInverse
> [1] method.
>
> HTH,
> Matt
>
> [1]
> http://www.itk.org/Doxygen/html/classitk_1_1Transform.html#aec45529ed771515f684b96c5bbff6fc6
>



-- 
*Gabriel Alberto Giménez.*
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